The Galapagos Islands are unique in their biodiversity, which helped Charles Darwin to develop his theory of evolution. But, for the time, 150 years after Darwin's famed visit to the island to study its wildlife, sea lions are migrating away from its shores.

With these recent developments, scientists worry that other species will follow suit, according to the BBC Brasil. More animals venturing beyond the tiny island chain to establish their colonies could have troubling consequences for the biodiversity there which took so long to establish.